ICD 10 Coding Alert

Reader Question:

Determine Whether Brain Stem Injury Resulted From Trauma

Question: Encounter notes indicate that the patient suffered a herniated brain stem. What is the ICD-10 code for this injury?

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Answer: Your diagnosis code choice will depend on whether the herniation was traumatic. For non-traumatic brain stem herniation, opt for G93.5 (Compression of brain). Per the synonyms under G93.5, use G93.5 for any of these diagnoses:

  • Herniation of brain stem
  • Arnold-Chari type I compression of brain
  • Compression of brain stem


If, however, the herniation is traumatic, you’ll opt for S06.A1- (
Traumatic brain compression with herniation).